package day03;

public class IfElseDemo {
    public static void main(String[] args) {
        //满500打8折，不满500打9折
        double price = 600;
        if (price >= 500){
            price *= 0.8;
            System.out.println("最终金额为"+price);
        }else{
            price *= 0.9;
            System.out.println("最终金额为"+price);
        }

        //判断成绩是否合法
        double score = 95.5;
        if (score >= 0 && score <= 100){
            System.out.println(score+"是合法成绩");
        }else {
            System.out.println(score+"是不合法成绩");
        }

    }
}
